nominal species Unio umbrosus Lea, 1857
Lea, 1857, Proc. Acad. Nat. Sci. 9: 32.
(homonym of Unio umbrosus Lea, 1856; renamed Unio umbrans Lea, 1857)
Type(s): HOLOTYPE USNM_84848, Medellin R., Mexico.
= Leaunio umbrans Taxonomic Opinions
+ Leaunio umbrans (Lea, 1857) — (Watters, 2018)
+ Villosa umbrans (Lea, 1857) — (Williams et al., 2008)
+ Ligumia vanuxemensis (Lea, 1838) — (Haas, 1969)
+ Lampsilis (Eurynia) vanuxemensis (Lea, 1838) — (Simpson, 1914)
+ Lampsilis (sec. Eurynia) vanuxemensis (Lea, 1838) — (Simpson, 1900)
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